In Taian, general international radio stations can receive it, such as those from Germany, South Korea, Japan, France, Australia, Mongolia and North Korea. However, due to too many buildings in urban areas, the signal may not be very good, but it will be much better in rural areas. Only some countries can't receive it, such as Malaysia, Indonesia and Turkey, which may be the reason for the low transmission power.
As for VOA and BBC, it is almost impossible to hear them clearly because the interference is too serious, because they will be covered by the same frequency signal of Voice of China. CNN is an American cable news network, and it is certainly impossible to listen to them on the radio.
If you want to learn English, you can listen to the English programs of the Australian Broadcasting Corporation or Radio China International, and the English night of Economic Voice is also very good!
It is best to buy FM, MW, HF full-band radios, such as Desheng's R9700DX, PL550 and Dejin's DE 1 103, and the reception effect will be better.
The specific broadcasting time and frequency can be found in www.5bcl.com, where there is a lot of information about broadcasting, which is also very useful.
I hope it helps you. Good luck!